Portion of a floor screen



FIG. 1 is a perspective view of a portion of a floor screen, in a folded position, showing my new design;

FIG. 2 is a front view thereof, shown in a flat position; and,

FIG. 3 is a front view of a second embodiment of my new design, shown in a flat position and without the environmental subject matter shown in FIGS. 1 and 2.

The dashed lines shown in FIGS. 1-2 represent environmental subject matter and form no part of the claimed design. The dotted lines shown in FIGS. 1-2 represent the border between claimed subject matter and unclaimed environmental subject matter and form no part of the claimed design. The jagged lines shown in FIG. 3 are not part of the claimed design and indicate that the shape of the borders form no part of this embodiment of the claimed design. 

The ornamental design for a portion of a floor screen, as shown and described. 